31044409 has 8 divisors (see below), whose sum is σ = 34654752. Its totient is φ = 27565440.

The previous prime is 31044401. The next prime is 31044437. The reversal of 31044409 is 90444013.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31044409 - 2³ = 31044401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31044401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32344 + ... + 33289.

It is an arithmetic number, because the mean of its divisors is an integer number (4331844).

Almost surely, 2^31044409 is an apocalyptic number.

It is an amenable number.

31044409 is a deficient number, since it is larger than the sum of its proper divisors (3610343).

31044409 is a wasteful number, since it uses less digits than its factorization.

31044409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65687.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 31044409 is about 5571.7509815138. The cubic root of 31044409 is about 314.2879996587.

The spelling of 31044409 in words is "thirty-one million, forty-four thousand, four hundred nine".